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CVE-2013-7440

Date: June 7, 2016

The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.

Severity Score

Related Resources (10)

https://access.redhat.com/errata/RHSA-2016:1166
https://hg.python.org/cpython/rev/10d0edadbcdd
https://bugs.python.org/issue17997
https://access.redhat.com/security/cve/CVE-2013-7440
http://seclists.org/oss-sec/2015/q2/483
https://nvd.nist.gov/vuln/detail/CVE-2013-7440
https://bugzilla.redhat.com/show_bug.cgi?id=1224999
http://www.securityfocus.com/bid/74707
http://seclists.org/oss-sec/2015/q2/523
https://www.mend.io/vulnerability-database/CVE-2013-7440

Severity Score

Weakness Type (CWE)

Data Handling

CWE-19

CVSS v3

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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